Centrifugal extractor.



E. F. POLAND.

GBNTRIPUGAL BXTRAGTOR.

APPLICATION FILED FEBJG, 1911. 1,094,589, Patented Apr. 28,1914.

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EDWARD F. POLAND, QF BOSTQN, MASSACHUSETTS.

CENTBIFUGAL EXTRACTR.

Specification of Letters Patent.

Patented Apr. 28, 1914.

Application alec February is, 1911. smal no. 608,937.

To all whom may concern; Y

Be it known that I, EDWARD F. POLAND,

residing at Boston, in the, county of Suffolk are connected.

v low step and State of Massachusetts, have invented yan Improvement inCentrifugal Extractors,

of which the following is a specification.

This invention relates to centrifugal extractors, and has for its objectto provide anl extractor with improved electrcally-op erated means tooperate it.-

In accordance with this'invention an electric motor is. arranged inVertical position with its shaft constructed andarranged to serve as therevolving spindle of the extractor, and a universal stepV 'bearingarranged on a base is provided for the lower ends of said shaft and themotor case, and yielding means are connected with the base and lower endportion of the motor case to hold the motor in vertical position andprevent its case from revolving, which ermits gyratory movement of theshaft an correspending limited oscillations in all direc- The lower endofthe spindle 12 enters or is contained ina cylindrical socket 14,arranged inV and extended diametrically through a spherical supportl,which support is provided with a .flange 16 for attaching it to thelower end of the motor-case 13. Said socket 14 has a flange 17 at itsupper end which lrests on a seat provided at the top of thespherical-support and has a small hole at the bottom. Said s hericalsupport rests in a spherically forme recess in a hol- 18, arranged on abase 19, the lower ends o said support and socket being exposedwithinthe hollow step at the bottom of the recess. Saidspherical-support, constructed and arranged'v as shown, provides forgyratory movement of the vertical spindle, and also serves as a supportfor the moy tor-case,l to permit oscillatlons of said case in alldirections to correspond with the gyratory movement of the spindle.

To hold the motor-case from revolving and also to admit of oscillationsthereof, corresponding to the gyrationfof the spindle, and to hold themotor-shaft 12 in vertical p os1t1on, means are arranged at one or moresides of the motor-case, which, as shown in the figure consists of anupright 4stub-shaft 20 havlng its upper end free to slide in a bushing21, arranged in an arm 22, attached to the motor-case, said stub-shafthaving its lower end formed with a horizontal, annular flange 23, whichis placed between substantially constructed rubber rings 24 and 25,

which are held securely in a box comprising a bottom part 26 adapted tobe secured to the base, and a top part 27 adapted to be detachablyconnected with the bottom part.

In operation, as the current isturned on the motor shaft 12 revolves,carrying with it the receptacle, and gyratory movement' of said shaft ispermitted by the universal step-bearing, and corresponding oscillationsof the motor-case likewise permitted, and said case .is held againstrotation and the spindle held in vertical position by` the stub-shaft,which is yieldingly supported, 'and slidably connected.

The electric-motor is inclosed in a case to prevent the .water fromcoming in contact with it, but to more fully protect it a shield 30 isattached to its case, or may be otherwise supported, which is arrangedbeneath the receptacle 10,1 and above the motor.

In an electrically operated centrifugal extractor, the combination of areceptacle, an electric-motor arranged in vertical position, to theupper end of the shaft vof which mot-or said receptacle is secured,aspherical-boss detachably connected to the lower end or' themotor-'casehaving a center-hole through it, a stationarily supportedspherical step-bearing for said boss, a flanged socket contained in thecenter hole in the boss which extends below the boss a'nd receives thelower end of the motor-shaft whereby the motor-case is caused tooscillate to correspond with the gyrations of said shaft, one or morearms rigidly attached to the lower end portion of the motor-case andradially extended therefrom, each arm having a vertical hole through itsouter end-portions, a sleeve arranged in said hole, an upright shaftarranged in said `sleeve n parallel relation with the motor shaft and ayielding'elementj name to this specification, in the .presence ofconnected with the lower end of said uptwo subscribing witnesses.' Aright shaft which admits ofan osf'zillatingv EDWARD FJPOLAND. movementof said shaft in all directions, Witnesses:

6 substantially as described. H. B. DAvIs,

" In testimony whereof, Ihave signed my B. J. Nom.

